Abstract36 adult non-pathological dried mandibles were studied. Distance between Mental Foramen (MF) and symphysis menti on both sides was measured and compared. Mean value of right side were 27.2 mm ( SD ± 0.28) and mean value of left side was 26.3 mm ( SD ± 0.35) ‘t’ test value was 15.0 and ‘p’ value was highly significant ( p < 0.01). Distance between MF and lower border of body of mandible was measured on both sides and compared, mean value of right side was 14.2 ( SD ± 0.14) and left side was 13.2 ( SD ± 0.26) ‘t’ test value was 19.5 and ‘p’ value was highly significant (p < 00.1). The distance between MF and posterior border of ramus of mandible was measured and compared. Mean value of right side was 9.2 (SD ± 0.21) and mean value of left side was 70.2 (SD ± 0.15), ‘t’ test value was 22.5 and p value was highly significant (SD ± 0.01) All these measure me were taken by vernier caliper. Mandible form the oor and cavity for tongue, the carcinoma of tongue also spread to body and ramus of the mandible moreover during accident chin or symphysis menti was commonly fractured. Hence these parameters will be quite useful to maxilla-facial surgeon to preserve the mental nerve which is sensory supply to lower lip, the buccal mucosa from incisor to the premolars and skin over the chin. Mental nerve also carries chorda tympani to labial minor salivary glands.1 It is also useful anesthetist to give local anesthesia invasive procedure for buccal or oral surgery. Moreover, these parameters belong to adult mandible who are more prone to meet accidents.
Keywords: MF = Mental foramen; ramus; body; symphysis menti; venier caliper.